identity.api requires RSA key pairs (private key and public key) to function. The keys should be placed in the identity.api\Keys directory before running the application.
├── identity.api
├── Keys
├── PrivateKey.pem
├── PublicKey.pem
openssl genrsa -out PrivateKey.pem 2048
openssl rsa -in PrivateKey.pem -pubout -out PublicKey.pem